Q: How do you find if a patent was aquired or sold

A: When a United States patent is sold, the acquiring party usually notes the change of ownership in the USPTO records. You can check these records and see the chain of title for the patent running from the inventors to the current owner at https://assignment.uspto.gov/patent/index.html#/patent/search

Often there will be other records noted as well such as when the patents have a lien from a bank to secure a bank loan.

A: To find out if a patent has been acquired or sold, you can start by checking the United States Patent and Trademark Office (USPTO) records. The USPTO maintains a database of all patents issued in the United States, which includes information on current and past patent owners.

You can search for a specific patent on the USPTO website using the patent number or the name of the original applicant or assignee. Once you locate the patent in question, review the "Assignment Information" section. This section records any changes in the ownership of the patent, such as transfers or sales.

It's also possible to search for assignment information on the USPTO’s Patent Assignment Search website. Here, you can enter the name of the patent owner (such as "HL Stud Inc") to find any recorded assignments or changes in ownership.

If you're having difficulty navigating these databases or if the information isn't clear, you might consider seeking help from someone with experience in patent law or intellectual property. They can assist in tracking the history of a patent's ownership and interpreting any legal documentation associated with it. Remember, understanding the history of a patent's ownership can be crucial, especially if you're considering a business decision related to that patent.